摘要 |
PROBLEM TO BE SOLVED: To provide a polygonal pyramidal drum effective for reducing the vibration in levee making work, decreasing the adhesion of soil to a part free from contact with the soil and suppressing the spattering of the soil. SOLUTION: The objective levee plastering machine is provided with a levee making member 16 having a pretreating member 14 attached to the back of a traveling body, receiving power from the body, tilling a part of old levee and the field and heaping the soil in the form of a levee at a side of the old levee and the polygonal pyramidal drum 19 rotating and forming a levee with the soil tilled by the pretreating member. (1) The center 19a of the polygonal drum 19 of the levee making member 16 at the side attached to the rotary shaft 20 is deviated from the center O of the rotary shaft 20 by a prescribed lengthα, (2) each ridge 18 of the polygonal drum 19 forms a straight line and (3) each ridge 18a of the polygonal drum 19 is curved with a sweepback angle in the direction of rotation.
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